Mammillaria mammillaris

Description

Mammillaria mammilllaris, common name Woolly Nipple Cactus, is a species of plant in the Cactaceae family. It is the type species of the genus Mammillaria. It has been described by Carolus Linnaeus as Cactus mammillaris in 1753. The specific epithet mammillaris comes from the Latin mammilla, meaning nipple, with reference to the characteristic tubercles.